The newspaper claims Leo was put in touch with Pattinson through mutual friend Reese Witherspoon, with a source revealing: "Robert was taken by surprise when Leo called him.
“He invited Rob along on a lads’ getaway in Puerto Rico for the wrap party on his movie Runner, Runner."
The insider added: “He wants to book a mansion at a secret location on the coast so he and his pals can party in private.”
While Dicaprio apparently takes Rob under his wing, K-Stew has reportedly been spotted out and about in Los Angeles.
Showbizspy.com claims that the 22-year old star is so upset by her affair with Sanders that she is struggling to eat, with a source telling the website: "Kristen is a nervous wreck and existing on a diet of cigarettes, sugar-free Red Bull and the occasional bag of potato chips.
“She’s been hiding out at the LA home of a producer friend and is looking pale and worn-out."
They added: Whenever anyone tries to push her to eat even a small bowl of soup, she either claims that she’s just had something, which isn’t true, or that she’s nauseous and there’s no chance of keeping anything down.”
Reports claim that Stewart's first public appearance since she admitted to being unfaithful to Rob is thought to be at the Toronto Film Festival next month, where she will be on hand to promote new flick On The Road.